Preferred Day Tanks Now OSP Shake Tested and Approved

Preferred Day Tanks have received HCAI/OSHPD OSP Shake testing approval, ensuring they meet stringent specifications for seismic activity. This means our tanks are designed to survive and perform even in earthquake-prone areas, making them ideal for mission-critical facilities.
Key Features:
- Made in the U.S.A.: Our day tanks are built with the highest quality standards to withstand rugged environments.
- Seismic Safety: Successfully shake-tested, proving durability and reliability during seismic events.
- Applications: Perfect for hospitals, schools, and other essential facilities requiring robust fuel storage solutions.
During testing, the tanks were filled with water. A negligible amount of liquid was expelled due to the vent’s pressure prevention function, which did not affect the overall test results. We recommend considering secondary containment for high seismic regions to manage potential fuel discharge during an earthquake.